extra values not passed to pandoc

[laBecasse]

Hi,
Extra values of the configuration are passed to pandoc, because this line is commented :
https://github.com/wzpan/hexo-renderer-pandoc/blob/fedc51c844c508dda6102d0897d6178dd41ec1bd/index.js#L26
Can you please uncomment it.
Thank for all.

[wzpan]

@laBecasse Thank you for pointing out that. Fixed.

[laBecasse]

Thank a lot for the update